/* 蘑菇视频 - 主样式表 */
:root {
  --blue: #00CFFF;
  --pink: #FF2D78;
  --orange: #FFB800;
  --green: #39FF14;
  --black: #0A0A0A;
  --white: #FFFFFF;
  --dark: #111111;
  --card-bg: #1A1A2E;
  --gradient: linear-gradient(135deg, #00CFFF 0%, #FF2D78 50%, #FFB800 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  background: var(--black);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

/* ===== HEADER / NAV ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,207,255,0.2);
}

.nav-wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.logo span { font-size: 0.9rem; font-weight: 400; color: var(--blue); -webkit-text-fill-color: var(--blue); }

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.2s;
}

.nav-links a:hover { color: var(--blue); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  background: var(--gradient);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 20px;
  font-weight: 700;
  -webkit-text-fill-color: var(--white) !important;
  transition: opacity 0.2s, transform 0.2s !important;
}

.nav-cta:hover { opacity: 0.85; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

/* ===== SEARCH BAR ===== */
.search-bar-wrap {
  background: rgba(26,26,46,0.95);
  border-bottom: 1px solid rgba(0,207,255,0.15);
  padding: 12px 0;
  margin-top: 64px;
}

.search-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,0.06);
  border: 1.5px solid rgba(0,207,255,0.3);
  border-radius: 32px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-inner:focus-within {
  border-color: var(--blue);
  box-shadow: 0 0 16px rgba(0,207,255,0.25);
}

.search-inner input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--white);
  font-size: 0.95rem;
  padding: 10px 16px;
}

.search-inner input::placeholder { color: rgba(255,255,255,0.4); }

.search-inner button {
  background: var(--gradient);
  border: none;
  color: var(--white);
  padding: 10px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
}

.search-inner button:hover { opacity: 0.85; }

/* ===== HERO BANNER ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('images/banner.jpg');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  z-index: 0;
}

.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  padding-top: 80px;
}

.hero-badge {
  display: inline-block;
  background: rgba(0,207,255,0.15);
  border: 1px solid var(--blue);
  color: var(--blue);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero h1 .brand { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  padding: 14px 36px;
  border-radius: 32px;
  font-size: 1rem;
  font-weight: 800;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: inline-block;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(255,45,120,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  padding: 14px 36px;
  border-radius: 32px;
  font-size: 1rem;
  font-weight: 700;
  border: 2px solid rgba(255,255,255,0.4);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
  display: inline-block;
}

.btn-outline:hover { border-color: var(--blue); color: var(--blue); }

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  flex-wrap: wrap;
}

.stat-item { text-align: left; }
.stat-num { font-size: 2rem; font-weight: 900; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.5); margin-top: 2px; }

/* ===== SECTION COMMON ===== */
.section {
  padding: 80px 0;
}

.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  display: inline-block;
  background: rgba(0,207,255,0.1);
  border: 1px solid rgba(0,207,255,0.3);
  color: var(--blue);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-title .accent { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.section-desc {
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ===== VIDEO CARDS ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  cursor: pointer;
  position: relative;
}

.video-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 16px 48px rgba(0,207,255,0.25), 0 0 32px rgba(255,45,120,0.15);
  border-color: var(--blue);
}

.video-thumb {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
  loading: lazy;
}

.video-card:hover .video-thumb img { transform: scale(1.08); }

.play-btn {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  transition: background 0.3s;
}

.play-btn svg {
  width: 56px; height: 56px;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.3s, transform 0.3s;
  filter: drop-shadow(0 0 16px rgba(0,207,255,0.8));
}

.video-card:hover .play-btn { background: rgba(0,0,0,0.35); }
.video-card:hover .play-btn svg { opacity: 1; transform: scale(1); }

.video-glow {
  position: absolute;
  inset: 0;
  opacity: 0;
  background: linear-gradient(135deg, rgba(0,207,255,0.3), rgba(255,45,120,0.3));
  transition: opacity 0.3s;
  pointer-events: none;
}

.video-card:hover .video-glow { opacity: 1; }

.duration-badge {
  position: absolute;
  bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  gap: 14px;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
}

.video-meta span { display: flex; align-items: center; gap: 4px; }

/* ===== COMMUNITY MODULE ===== */
.community-section { background: rgba(26,26,46,0.5); }

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.topic-tag {
  background: rgba(0,207,255,0.08);
  border: 1px solid rgba(0,207,255,0.25);
  color: var(--blue);
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.topic-tag:hover { background: rgba(0,207,255,0.2); transform: translateY(-2px); }
.topic-tag.hot { border-color: var(--pink); color: var(--pink); background: rgba(255,45,120,0.08); }
.topic-tag.hot:hover { background: rgba(255,45,120,0.2); }

.danmu-wrap {
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 20px;
  min-height: 80px;
  overflow: hidden;
  position: relative;
}

.danmu-item {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 4px;
  animation: danmuFloat 8s linear infinite;
}

@keyframes danmuFloat {
  0% { transform: translateX(100vw); opacity: 1; }
  100% { transform: translateX(-200%); opacity: 0.5; }
}

/* ===== AI MODULE ===== */
.ai-section { background: linear-gradient(180deg, #0A0A0A 0%, #0D1B2A 100%); }

.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.ai-img-wrap {
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(0,207,255,0.2);
}

.ai-img-wrap img { width: 100%; display: block; }

.ai-glow-ring {
  position: absolute;
  inset: -2px;
  border-radius: 22px;
  background: var(--gradient);
  z-index: -1;
  opacity: 0.4;
  filter: blur(8px);
}

.ai-features { display: flex; flex-direction: column; gap: 20px; }

.ai-feature {
  background: rgba(26,26,46,0.8);
  border: 1px solid rgba(0,207,255,0.15);
  border-radius: 12px;
  padding: 20px;
  transition: border-color 0.2s, transform 0.2s;
}

.ai-feature:hover { border-color: var(--blue); transform: translateX(4px); }

.ai-feature-icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.ai-feature h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; color: var(--blue); }
.ai-feature p { font-size: 0.85rem; color: rgba(255,255,255,0.6); line-height: 1.5; }

/* ===== KOL MODULE ===== */
.kol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}

.kol-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px 16px;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}

.kol-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,207,255,0.2);
}

.kol-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 12px;
  display: block;
  border: 3px solid transparent;
  background: var(--gradient) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
}

.kol-name { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.kol-tag { font-size: 0.78rem; color: var(--blue); margin-bottom: 10px; }
.kol-fans { font-size: 0.82rem; color: rgba(255,255,255,0.5); }
.kol-fans strong { color: var(--orange); }

/* ===== REVIEWS ===== */
.reviews-section { background: rgba(26,26,46,0.3); }

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
}

.review-card::before {
  content: '"';
  position: absolute;
  top: 12px; right: 20px;
  font-size: 4rem;
  color: rgba(0,207,255,0.15);
  font-family: serif;
  line-height: 1;
}

.review-stars { color: var(--orange); font-size: 0.9rem; margin-bottom: 12px; }
.review-text { font-size: 0.9rem; color: rgba(255,255,255,0.8); line-height: 1.6; margin-bottom: 16px; }

.review-user { display: flex; align-items: center; gap: 10px; }
.review-user-name { font-size: 0.85rem; font-weight: 700; }
.review-user-label { font-size: 0.75rem; color: rgba(255,255,255,0.4); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }

.faq-item {
  background: var(--card-bg);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  overflow: hidden;
}

.faq-q {
  padding: 18px 24px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s;
}

.faq-q:hover { color: var(--blue); }

.faq-q .arrow {
  width: 20px; height: 20px;
  border: 2px solid currentColor;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
  transition: transform 0.3s;
}

.faq-item.open .faq-q .arrow { transform: rotate(180deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  padding: 0 24px;
}

.faq-item.open .faq-a {
  max-height: 200px;
  padding: 0 24px 18px;
}

/* ===== PARTNERS ===== */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
}

.partner-logo {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 14px 28px;
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  transition: border-color 0.2s, color 0.2s;
}

.partner-logo:hover { border-color: var(--blue); color: var(--blue); }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}

.contact-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 32px 24px;
  border: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.contact-icon { font-size: 2.5rem; margin-bottom: 12px; }
.contact-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; color: var(--blue); }
.contact-card p { font-size: 0.85rem; color: rgba(255,255,255,0.6); line-height: 1.6; }

/* ===== FOOTER ===== */
.site-footer {
  background: #050505;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 48px 0 24px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo { font-size: 1.4rem; display: block; margin-bottom: 12px; }
.footer-brand p { font-size: 0.85rem; color: rgba(255,255,255,0.5); line-height: 1.7; }

.footer-col h4 { font-size: 0.9rem; font-weight: 700; margin-bottom: 16px; color: var(--white); }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a { font-size: 0.82rem; color: rgba(255,255,255,0.5); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--blue); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

.footer-social { display: flex; gap: 12px; }
.social-btn {
  width: 32px; height: 32px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem;
  transition: border-color 0.2s, color 0.2s;
}
.social-btn:hover { border-color: var(--blue); color: var(--blue); }

/* ===== PARTICLES ANIMATION ===== */
@keyframes particleFloat {
  0% { transform: translateY(0) rotate(0deg); opacity: 0.8; }
  100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

.particle {
  position: absolute;
  border-radius: 50%;
  animation: particleFloat linear infinite;
  pointer-events: none;
}

/* ===== INNER PAGE HERO ===== */
.inner-hero {
  padding: 120px 0 60px;
  background: linear-gradient(180deg, rgba(0,207,255,0.05) 0%, transparent 100%);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.breadcrumb {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}

.breadcrumb a { color: var(--blue); }
.breadcrumb span { margin: 0 8px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .ai-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.2rem; }
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
  .kol-grid { grid-template-columns: repeat(2, 1fr); }
  .reviews-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .video-grid { grid-template-columns: 1fr; }
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-outline { text-align: center; }
}

/* ===== GLOW EFFECTS ===== */
.glow-blue { text-shadow: 0 0 20px rgba(0,207,255,0.5); }
.glow-pink { text-shadow: 0 0 20px rgba(255,45,120,0.5); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: rgba(0,207,255,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ===== INNER PAGE CONTENT ===== */
.content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}

.content-card {
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 24px;
}

.content-card img {
  width: 100%;
  display: block;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.content-card-body { padding: 20px; }
.content-card-body h2 { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.content-card-body p { font-size: 0.88rem; color: rgba(255,255,255,0.6); line-height: 1.7; }

.sidebar-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 20px;
  border: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 20px;
}

.sidebar-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 14px; color: var(--blue); }

.hot-list { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.hot-list li { font-size: 0.85rem; color: rgba(255,255,255,0.7); padding-left: 16px; position: relative; }
.hot-list li::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 6px; height: 6px; border-radius: 50%; background: var(--gradient); }

@media (max-width: 768px) {
  .content-grid { grid-template-columns: 1fr; }
}